vendor/rails/railties/lib/rails_generator/generators/components/model/templates/migration.rb

   1 class <%= migration_name %> < ActiveRecord::Migration
   2   def self.up
   3     create_table :<%= table_name %> do |t|
   4 <% for attribute in attributes -%>
   5       t.<%= attribute.type %> :<%= attribute.name %>
   6 <% end -%>
   7 <% unless options[:skip_timestamps] %>
   8       t.timestamps
   9 <% end -%>
  10     end
  11   end
  12
  13   def self.down
  14     drop_table :<%= table_name %>
  15   end
  16 end